Treadmill



FIG. 1 is a perspective view of the front and right side of a treadmill showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a reduced scale right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a reduced scale rear and left perspective view thereof, shown in a folded position; and,

FIG. 7 is a reduced scale front and right side perspective view thereof, shown in a folded position.

The features shown in broken lines show environment only and form no part of the claim. 

CLAIM The ornamental design for a treadmill, as shown and described. 